Indication Of User Equipment Mobility State To Enhance Mobility And Call Performance

ABSTRACT

A user equipment UE reports its mobility state in signaling for establishing, re-establishing, or re-configuring a radio connection between the UE and a network access node. In one embodiment the reported mobility state is selected from among normal; medium and high. In another embodiment the reported mobility state informs of a number of cell changes the UE has performed within a predetermined evaluation period. The UE may also include an indication whether a hysteresis period for entering into a normal mobility state is running for the UE. The network configures the UE in dependence on the reported mobility state, such as setting a parameter for measuring or reporting neighbor cells (e.g., suspend a serving cell quality threshold as a condition for measuring/reporting; limit inter-frequency and/or inter-radio access technology reporting; set a shortest measurement reporting gap; disable an event trigger; and/or set layer 3 filtering of measurement results for faster reporting).

CROSS REFERENCE TO RELATED APPLICATION

This application claims priority to U.S. Provisional Patent ApplicationSer. No. 61/525,371 filed on Aug. 19, 2011, the contents of which isincorporated by reference in its entirety.

TECHNICAL FIELD

The exemplary and non-limiting embodiments of this invention relategenerally to wireless communications systems, method, devices andcomputer programs and, more specifically, relate to signaling between auser equipment and a network access node for establishing a radioresource connection and similar connection mode transitions.

BACKGROUND

This section is intended to provide a background or context to theinvention that is recited in the claims. The description herein mayinclude concepts that could be pursued, but are not necessarily onesthat have been previously conceived or pursued. Therefore, unlessotherwise indicated herein, what is described in this section is notprior art to the description and claims in this application and is notadmitted to be prior art by inclusion in this section.

Certain abbreviations that may be found in the description and/or in theFigures are herewith defined as follows:

AUC authentication center

EUTRAN evolved UTRAN

LTE long term evolution

MCC mobile country code

MNC mobile network code

MME mobility management entity

MNO mobile network operator

RAT radio access technology

RRC radio resource connection//control

UE user equipment

UTRAN universal terrestrial radio access network

VLR visitor location register

VOIP voice over internet protocol

VoLTE voice over LTE

In a 3GPP system, for example an E-UTRAN system, a radio resourceconnection (RRC) layer may be used to broadcast system informationrelated to an access layer and transport of messages in a non-accesslayer. In addition, an RRC layer can be used for operations such as userequipment (UE) measurements related to mobility, handover, quality ofservice (QOS), paging, and security key management.

There are two main modes of RRC, these modes being an RRC idle mode andan RRC connected mode. In either of these modes a UE may measureneighbor cells. An RRC connection with a network host must beestablished for a UE to transition from an RRC idle mode to an RRCconnected mode. The UE will initiate such an RRC connection if the UEroams into a network, cell, or area of a new network host, such as abase station or an intermediary network node. In addition, an RRCconnection establishment may be initiated by the UE if an application,such as an Internet Browser, is started at the UE. The UE is required tobe in an RRC connected mode before the UE can perform signalingprocesses and/or transfer application data.

While in the RRC connected mode the network may change parameters whichtell the UE specifics as to how and how often it is to measure andreport on its neighbor cells. Some of those parameters may be set withreference to the mobility state of the UE. The UE can determine itsmobility state by calculating how many cell reselections or handoversfrom one cell to another have taken place within a time period, asspecified by network. These calculations effectively determine a speedat which the UE is operating. All else being equal, the network wouldprefer more frequent measurement reports from faster moving UEs.

But the network does not know the mobility state of a UE in the RRC idlemode. A problem arises where a fast moving UE in the idle modetransitions to the RRC connected mode in that it may not be giving tothe network the optimum neighbor cell reports that would allow thenetwork to properly manage the UE's handovers.

Embodiments of these teachings address this and other shortfalls withinconventional wireless network practices.

SUMMARY

In an exemplary aspect of the invention, there is a method comprisingdetermining a mobility state of a user equipment; and reporting thedetermined mobility state of the user equipment in signaling forestablishing, re-establishing, or re-configuring a radio connectionbetween the user equipment and a network access node.

In an exemplary aspect of the invention, there is a computer readablememory storing a computer program comprising: code for determining amobility state of a user equipment; and code for reporting thedetermined mobility state of the user equipment in signaling forestablishing, re-establishing, or re-configuring a radio connectionbetween the user equipment and a network access node.

In an exemplary aspect of the invention, there is an apparatuscomprising at least one processor and at least one memory includingcomputer program code. In this aspect the memory and the computerprogram code are configured with the at least one processor to cause theapparatus to perform at least: determining a mobility state of a userequipment; and reporting the determined mobility state of the userequipment in signaling for establishing, re-establishing, orre-configuring a radio connection between the user equipment and anetwork access node.

In another exemplary aspect of the invention, there is a methodcomprising determining a mobility state of a user equipment fromsignaling, received from the user equipment, for establishing,re-establishing, or re-configuring a radio connection between the userequipment and a network access node; and configuring the user equipmentin dependence on the determined mobility state.

In yet another exemplary aspect of the invention, there is an computerreadable memory storing a computer program comprising: code fordetermining a mobility state of a user equipment from signaling receivedfrom the user equipment for establishing, re-establishing, orre-configuring a radio connection between the user equipment and anetwork access node; and code for configuring the user equipment independence on the determined mobility state.

In another exemplary aspect of the invention, there is an apparatuscomprising: at least one processor and at least one memory. The at leastone memory and the computer program code are configured with the atleast one processor to cause the apparatus to perform at least:determining a mobility state of a user equipment from signaling,received from the user equipment, for establishing, re-establishing, orre-configuring a radio connection between the user equipment and anetwork access node; and configuring the user equipment in dependence onthe determined mobility state.

These and other embodiments are detailed further below

BRIEF DESCRIPTION OF THE DRAWINGS

The foregoing and other aspects of embodiments of this invention aremade more evident in the following Detailed Description, when read inconjunction with the attached Drawing Figures, wherein:

FIG. 1A is a conventional signaling diagram illustrating a successfulRRC connection establishment;

FIG. 1B is a conventional signaling diagram illustrating network rejectof an RRC connection establishment procedure;

FIGS. 2 and 3 are logic flow diagrams each illustrating the operation ofa method, and a result of execution of computer program instructionsembodied on a computer readable memory, in accordance with the exemplaryembodiments presented herein.

FIG. 4 illustrates a simplified block diagram of various electronicdevices that are suitable for use in practicing the exemplaryembodiments presented herein.

DETAILED DESCRIPTION

In order to optimize and/or prepare for UE mobility as quickly aspossible, the exemplary embodiments provide techniques to reportinformation comprising a mobility state of a UE to a network upon orduring operations of an RRC connection setup. Such reported informationwill at least improve the efficiency of operations including themobility of the UE for a handover to another cell, such as a handover toan inter-RAT cell, if one becomes necessary soon after the RRCconnection is established with the EUTRAN cell.

The network being informed of the mobility speed of the UE, during orwith the RRC connection establishment, can be most beneficial for use inestablishing at least certain types of connections. For example, suchknowledge by the network could benefit a call setup and a connectionestablishment for accessing an IP multi-media subsystem (IMS) or an IMSVoIP service or voice over LTE (VoLTE). This information would beparticularly useful when the UE enters the RRC-CONNECTED state andbegins to set up a call or access to a service.

One specification of interest is 3GPP TS 36.304, V10.1.0 (2011-03), 3rdGeneration Partnership Project; Technical Specification Group RadioAccess Network; Evolved Universal Terrestrial Radio Access (E-UTRA);User Equipment (UE) procedures in idle mode (Release 10), incorporatedby reference herein in its entirety. Another specification of interestis 3GPP TS 36.331 V10.1.0 (2011-03) 3rd Generation Partnership Project;Technical Specification Group Radio Access Network; Evolved UniversalTerrestrial Radio Access (E-UTRA); Radio Resource Control (RRC);Protocol specification (Release 10), also incorporated by referenceherein in its entirety.

FIG. 1A reproduces FIG. 5.3.3.1-1 of 3GPP TS 36.331, and shows theoverall RRC connection establishment procedure. As illustrated in FIG.1A, the UE starts the radio resource control (RRC) connection. The UEsends an RRCConnectionRequest message 100 requesting RRC connectionsetup to a base station such as of an evolved universal terrestrialradio access network (EUTRAN), hereafter referred to simply as EUTRAN.The EUTRAN sets up a radio link and sends the UE an RRCConnectionSetupmessage 110, the message comprising physical channel information. Afterthe UE has synchronized itself with the EUTRAN, it transmits anacknowledgement RRCConnectionSetupComplete message 120. After the UE hasset up the RRC connection, it may send higher-layer messages, such as acall setup message.

FIG. 1B reproduces FIG. 5.3.3.1-2 of 3GPP TS 36.331, and shows theoverall RRC network reject procedure. FIG. 1B illustrates an example ofan RRC connection failure. The EUTRAN can fail an attempt to set up aradio link. Such a failure can be due to hardware blocking, or anadmission control can reject a setup attempt. In such a situation, inresponse to an RRCConnectionRequest message 140 the EUTRAN transmits anRRCConnectionReject message 150.

It is noted that, in accordance with the exemplary embodiments of theinvention, the information comprising the mobility state of a UE can beprovided to a network in any of the uplink messages 100, 120, 140 ofFIGS. 1A and 1B.

According to 3GPP TS 36.304 section 5.2.4.3, a normal-mobility state, ahigh-mobility, and a medium-mobility state are applicable if theparameters (T_(CRmax), N_(CR) _(—) _(H), N_(CR) _(—) _(M) andT_(CRmaxHyst)) are sent in the system information broadcast of theserving cell. The mobility state of the UE is defined as follows:

Medium-mobility state criteria:

-   -   If number of cell reselections during time period T_(CRmax)        exceeds N_(CR) _(—) _(M) and does not exceed N_(CR) _(—) _(H)        High-mobility state criteria:    -   If number of cell reselections during time period T_(CRmax)        exceeds N_(CR) _(—) _(H)        In the above, T_(CRmax) specifies the duration for evaluating        allowed amount of cell reselection(s), N_(CR) _(—) _(M)        specifies the maximum number of cell reselections to enter        medium mobility state, N_(CR) _(—) _(H) specifies the maximum        number of cell reselections to enter high mobility state, and        T_(CRmaxHyst) specifies the additional time period before the UE        can enter normal-mobility.

Further according to 3GPP TS 36.304 section 5.2.4.3, The UE shall:

-   -   if the criteria for High-mobility state is detected:        -   enter High-mobility state.    -   else if the criteria for Medium-mobility state is detected:        -   enter Medium-mobility state.    -   else if criteria for either Medium- or High-mobility state is        not detected during time period T_(CRmaxHyst):        -   enter Normal-mobility state

Based on whether the UE is on the move and the amount of cellreselections which occurred during a preceding time period, it may bewarranted to change the mobility state of the UE, such as to a medium orhigh mobility state. In a medium or high mobility state it is morelikely that the UE will need to be handed over to another cell (of thesame or different RAT) soon after establishing its RRC connection. Butthe conventional RRC connection establishment process does not enablethe new cell or network to know the mobility state of the UE. Knowledgeby a network of a mobility state of the UE during RRC connectionestablishment can be beneficial to allow the network to set parametersfor neighbor cell measurements which are optimized for UE speed.

In accordance with an exemplary embodiment of the invention, signalingincluding radio resource management connection messages from a userequipment (UE) are modified to include an extension comprising anindication of the UE mobility.

In accordance with the exemplary embodiments of the invention, a userequipment would report its mobility state and/or other information to anetwork upon, during, or upon a completion of an RRC connectionestablishment, re-establishment, and/or re-configuration with thenetwork. This enables the network to optimize parameters that relate toUE speed.

Such optimization by the network would in various implementations resultin one or more of the following:

-   -   immediately configure the UE to perform neighbor measurements        and report the measurements and/or other information. Further,        this could include enabling the network to configure the UE to        perform inter-RAT reporting.    -   set measurement parameters on the UE such that neighbor        measurements are performed faster and more efficiently by the        UE. In addition, the network is able to configure the UE to        enable certain types of measurements which would otherwise not        be performed by the UE. For example the UE could be configured        to disable s-Measure such that the measurements are performed        even if the signal quality of the serving cell would at this        point in time be good enough. The s-Measure is a threshold        which, if used, indicates that the UE will measure        inter-frequency and/or inter-RAT cells if the serving cell        signal quality is above the s-Measure threshold. The network can        configure the UE to perform operations regardless of other        settings or thresholds of the UE (e.g. a good serving cell        quality threshold). Further, in accordance with exemplary        embodiments, the information provided to the network would        enable operations at the network which would limit the amount of        inter-frequency and inter-RAT frequencies and enable quicker        reporting on cells. This is the case for at least the reason the        network would already know the mobility states of the UEs and,        based on the configured measurement reporting at the UEs, as        described above, know which UEs have potentially the best        coverage.    -   assign the UE the shortest measurement gap pattern periodicity        (e.g., 40 ms rather than 80 ms) for inter-frequency/inter-RAT        measurements. Also, periodic measurement reporting could be        configured for the UE such that the UE will report on the        neighboring cells without an event trigger or similar external        prompting of such reporting. Also, the layer 3 filtering        parameters could be set such that less filtering would be        applied, thus resulting in faster results.    -   hand the UE over, such as based on access capacity, to a        different coverage layer. For example, in this situation the UE        may be handed over from a high frequency band and/or small cells        to a low frequency band/larger cells. In accordance with the        embodiments, a handover can be performed based on the knowledge        of the network that the coverage layer coverage exists all over        this capacity layer coverage. [for example, the UE is camping        and established a connection with an LTE cell on a 2100 MHz        frequency band (a capacity layer; smaller cells but high        capacity due to fewer users per cell) and the network can hand        the UE over to the coverage layer (a cell in the 800 MHz        frequency band which is a larger cell but has lesser capacity        due to a larger number of users per cell) even before the UE has        made any measurements or reporting on the 800 MHz frequency        band].

In accordance with the exemplary embodiments of the invention, if a UEis camping on (or idle) in a network cell, the network can hand over theUE and/or the UE can establish a connection with another cell in anotherfrequency band, for example a LTE cell in a 2100 MHz frequency band. TheLTE cell possibly being a smaller cell but having a high access capacitydue to a small(er) amount of users. In addition, the network can handthe UE over to another larger coverage layer cell, for example a cell inan 800 MHz frequency band, even though larger cells may have a smallercapacity due to higher number of users in the cell. Furthermore, inaccordance with the exemplary embodiments of the invention, the handovercan be started and/or performed even before the UE has reportedmeasurements of the 800 MHz frequency cell to the network.

FIG. 2 is a logic flow diagram which describes the above exemplaryembodiments of the invention from the perspective of the UE. FIG. 2represents results from executing a computer program or an implementingalgorithm stored in the local memory of the UE, as well as illustratingthe operation of a method and a specific manner in which the processorand memory with computer program/algorithm are configured to cause thatUE (or one or more components thereof) to operate.

Block 202 begins with the UE or components thereof determining amobility state of a UE. By example the UE can track the number of cellchanges it undergoes over a predetermined time period and either reportthat number or whether that number is within some pre-arranged range(normal, medium, high). Block 204 continues in that the UE reports thedetermined mobility state of the UE in signaling for establishing,re-establishing, or re-configuring a radio connection between the UE anda network access node.

The lower granularity reporting mentioned above is summarized at block206: the determined mobility state which is reported is selected fromthe group consisting of: normal; medium and high. The higher granularityreporting mentioned above is summarized at block 208; the determinedmobility state which is reported informs of a number of cell changes theUE has performed within a predetermined evaluation period. These differin that reporting the mobility state as normal, medium or high merelyinforms the network of a possible range of cell changes the UE hasundertaken per time period, wherein reporting so as to inform thenetwork of the number of cell changes per time period is more precise inthat it gives the actual number of cell changes rather than only arange. Either the above low or high granularity reporting may also havethe UE include, in that same signaling of block 204, an indicationwhether a hysteresis period for entering into a normal mobility state isrunning for the user equipment.

Block 210 describes the specific messages from the above examples inwhich the UE may send this determined mobility state, any one or moreof:

-   -   a radio resource control connection setup complete message;    -   a radio resource control connection request message;    -   a radio resource control connection reestablishment complete        message; and    -   a radio resource control connection reconfiguration complete        message.

FIG. 3 is a logic flow diagram which describes the above exemplaryembodiments of the invention from the perspective of the network, ormore specifically the network access node with which the UE establishes,re-establishes and/or re-configures its RRC radio connection. FIG. 3represents results from executing a computer program or an implementingalgorithm stored in the local memory of the network access node, as wellas illustrating the operation of a method and a specific manner in whichthe processor and memory with computer program/algorithm are configuredto cause that UE (or one or more components thereof) to operate.

Block 302 begins with the network access node determining a mobilitystate of a UE from signaling, received from the user equipment, forestablishing, re-establishing, or re-configuring a radio connectionbetween the user equipment and a network access node. Then at block 304the network access node configures the UE in dependence on thedetermined mobility state.

Various of the optional embodiments are summarized in the remainder ofFIG. 3. At block 306 the configuring of block 304 is specified to meansetting at least one parameter for the user equipment to measure orreport neighbor cells. By the above examples, the at least one parametercan instruct the UE to perform at least one of:

-   -   suspend a serving cell quality threshold as a condition for        measuring or reporting neighbor cells;    -   limit inter-frequency and/or inter-radio access technology        reporting of neighbor cells;    -   set a shortest measurement reporting gap period for reporting        neighbor cells;    -   disable an event trigger for reporting neighbor cells; and    -   set layer 3 filtering of measurement results to enable faster        reporting of neighbor cells.

Or at block 308 the configuring of block 306 is handing over the UE froma capacity layer of the network access node to a coverage layer having alower frequency band and a larger cell (larger geographic area) than thecapacity layer.

The various blocks shown in each of FIGS. 2 and 3 may also be consideredas a plurality of coupled logic circuit elements constructed to carryout the associated function(s), or specific result or function ofstrings of computer program code stored in a computer readable memory.Such blocks and the functions they represent are non-limiting examples,and may be practiced in various components such as integrated circuitchips and modules, and that the exemplary embodiments of this inventionmay be realized in an apparatus that is embodied as an integratedcircuit. The integrated circuit, or circuits, may comprise circuitry (aswell as possibly firmware) for embodying at least one or more of a dataprocessor or data processors, a digital signal processor or processors,baseband circuitry and radio frequency circuitry that are configurableso as to operate in accordance with the exemplary embodiments of thisinvention

FIG. 4 illustrates a simplified block diagram of various electronicdevices and apparatus that are suitable for use in practicing theexemplary embodiments of this invention. In FIG. 4 a wireless network(network access node 22, neighbor cell 26, and higher network node 24)is adapted for communication over wireless link 21, and possibly link23, with an apparatus, such as a mobile terminal or UE 20. The highernetwork node 24 may be implemented in the LTE system as a mobilitymanagement entity (MME) which provides connectivity with furthernetworks (e.g., publicly switched telephone network (PSTN) and/or a datacommunications network/Internet).

The UE 20 includes processing means such as at least one data processor(DP) 20A, storing means such as at least one computer-readable memory(MEM) 20B storing at least one computer program (PROG) 20C or moregenerally computer program code, communicating means such as atransmitter TX 20D and a receiver RX 20E for bidirectional wirelesscommunications with the node B 22 via one or more antennas 20F. Also thecommunications 27 between the UE 20 and the neighbor cell 26, such asmeasurements in accordance with the embodiments of the invention, can beperformed via wireless link 27 and/or antennas 20F and 26F. Further,stored in the MEM 20B, for at least the RRC unit 20G, is at least theinformation related to exemplary embodiments of the invention includingmeans for initiating an RRC establishment with a network node andproviding information comprising a mobility state of the UE 20 to thenetwork node, such as the network node 22, and means for receivinginstructions, in accordance with the exemplary embodiments of theinvention, from the network node.

The network access node 22 also includes processing means such as atleast one data processor (DP) 22A, storing means such as at least onecomputer-readable memory (MEM) 22B storing at least one computer program(PROG) 22C or more generally computer program code, and communicatingmeans such as a transmitter TX 22D and a receiver RX 22E forbidirectional wireless communications with at least the UE 20 via one ormore antennas 22F. Further, also stored in the MEM 22B, for at least theRRC unit 22G, is the information related to the exemplary embodimentsincluding receiving the information comprising the mobility state of theUE 20, as well as programming code executable to cause the network node22 to use the information to optimize and prepare for the UE mobility,in accordance with the exemplary embodiments of the invention.

Similarly, the higher network node 24 includes processing means such asat least one data processor (DP) 24A, storing means such as at least onecomputer-readable memory (MEM) 24B storing at least one computer program(PROG) 24C or more generally computer program code, and communicatingmeans such a modem 24D for bidirectional communications with at leastthe network access node 22 via the data/control path 25. Further,similar to the network access node 22, stored in the MEM 24B, for atleast the RRC unit 24G, is the information related to the exemplaryembodiments of the invention including receiving information comprisinga mobility state of UE, should the need arise for the higher networknode 24 to have this information, as well as computer program codeconfigured to cause the higher network node 24 to use the information tooptimize and prepare for the UE mobility, as in accordance with theexemplary embodiments of the invention. While not particularlyillustrated for the UE 20 or network nodes 22, 26, each of those devicesare also assumed to include as part of their wireless communicatingmeans a modem which may be inbuilt on a radiofrequency RF front end chipwithin those devices 20, 22, 26 and which chip also carries the TX20D/22D and the RX 20E/22E.

At least one of the PROGs 20C in the UE 20 is assumed to include programinstructions that, when executed by the associated DP 20A, enable thedevice to operate in accordance with the exemplary embodiments of thisinvention, as detailed more fully above. In this regard the exemplaryembodiments of this invention may be implemented at least in part bycomputer software stored on the MEM 20B which is executable by the DP20A of the UE 20, or by hardware, or by a combination of tangibly storedsoftware and hardware (and tangibly stored firmware). Electronic devicesimplementing these aspects of the invention need not be the entire UE20, but exemplary embodiments may be implemented by one or morecomponents of same such as the above described tangibly stored software,hardware, firmware and DP, or a system on a chip SOC or an applicationspecific integrated circuit ASIC or a digital signal processor DSP or amodem or a subscriber identity module commonly referred to as a SIMcard.

In general, the various embodiments of the UE 20 can include, but arenot limited to: cellular telephones; data cards, USB dongles, personalportable digital devices having wireless communication capabilitiesincluding but not limited to laptop/palmtop/tablet computers, digitalcameras and music devices, and Internet appliances.

Various embodiments of the devices in FIG. 4, such as the computerreadable memories MEM 20B, MEM 22B, MEM 24B, and MEM 26B, include anydata storage technology type which is suitable to the local technicalenvironment, including but not limited to semiconductor based memorydevices, magnetic memory devices and systems, optical memory devices andsystems, fixed memory, removable memory, disc memory, flash memory,DRAM, SRAM, EEPROM and the like. Various embodiments of the DP 20Ainclude but are not limited to general purpose computers, specialpurpose computers, microprocessors, digital signal processors (DSPs) andmulti-core processors.

In addition, various modifications and adaptations to the foregoingexemplary embodiments of this invention may become apparent to thoseskilled in the relevant arts in view of the foregoing description. Whilethe exemplary embodiments have been described above in the context ofthe EUTRAN system, it should be appreciated that the exemplaryembodiments of this invention are not limited for use with only this oneparticular type of wireless communication system, and that they may beused to advantage in other wireless communication systems such as forexample GERAN, UTRAN and others.

The foregoing description has provided by way of exemplary andnon-limiting examples a full and informative description of the bestmethod and apparatus presently contemplated by the inventors forcarrying out the invention. However, various modifications andadaptations may become apparent to those skilled in the relevant arts inview of the foregoing description, when read in conjunction with theaccompanying drawings and the appended claims. However, all such andsimilar modifications of the teachings of this invention will still fallwithin the scope of this invention.

Furthermore, some of the features of the preferred embodiments of thisinvention could be used to advantage without the corresponding use ofother features. As such, the foregoing description should be consideredas merely illustrative of the principles of the invention, and not inlimitation thereof.

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 12. An apparatus for configuring user equipment comprising:at least one processor; and at least one computer readable memoryincluding computer program code; the at least one memory and thecomputer program code configured with the at least one processor tocause the apparatus to perform: determining a mobility state of a userequipment from signaling received from the user equipment forestablishing, re-establishing, or re-configuring a radio connectionbetween the user equipment and a network access node; configuring theuser equipment in dependence on the determined mobility state; andwherein the user equipment performs at least one of: suspending aserving cell quality threshold as a condition for measuring or reportingneighbor cells; limiting inter-frequency and/or inter-radio accesstechnology reporting of neighbor cells; setting a shortest measurementreporting gap period for reporting neighbor cells; disabling an eventtrigger for reporting neighbor cells; and setting layer 3 filtering ofmeasurement results to enable faster reporting of neighbor cells. 13.The apparatus according to claim 12, wherein configuring the userequipment comprises setting at least one parameter for the userequipment to measure or report neighbor cells.
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 15. Theapparatus according to claim 12, wherein configuring the user equipmentcomprises handing over the user equipment from a capacity layer of thenetwork access node to a coverage layer having a lower frequency bandand a larger cell than the capacity layer.
 16. The apparatus accordingto claim 12, in which the apparatus comprises the network access node.17. (canceled)
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 19. A non-transient computer readablememory storing a computer program executable by a processor which, whenexecuted by the processor, causes the performance of operationscomprising: determining a mobility state of a user equipment fromsignaling received from the user equipment for establishing,re-establishing, or re-configuring a radio connection between the userequipment and a network access node; configuring the user equipment independence on the determined mobility state; and wherein the configuringthe user equipment comprises instructing the user equipment to performat least one of: suspending a serving cell quality threshold as acondition for measuring or reporting neighbor cells; limiting at leastone of inter-frequency and inter-radio access technology reporting ofneighbor cells; setting a shortest measurement reporting gap period forreporting neighbor cells; disabling an event trigger for reportingneighbor cells; and setting layer 3 filtering of measurement results toenable faster reporting of neighbor cells.
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